Home / 208,890.28-288,269.22-113,397.04

Finding the Fourth Proportional to 208,890.28, 288,269.22 and 113,397.04

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Solution

The fourth proportional to 208,890.28, 288,269.22 and 113,397.04 is: 156,488.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,890.28 : 288,269.22 = 113,397.04 : x
  2. Step 2: Convert to fraction form
    208,890.28/288,269.22 = 113,397.04/x
  3. Step 3: Cross multiply
    208,890.28x = 288,269.22 × 113,397.04
  4. Step 4: Simplify right side
    208,890.28x = 32,688,876,271.11
  5. Step 5: Solve for x
    x = 32,688,876,271.11/208,890.28
  6. Step 6: Final answer
    x = 156,488.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.